11572913813 has 12 divisors (see below), whose sum is σ = 12218505408. Its totient is φ = 10959834600.

The previous prime is 11572913783. The next prime is 11572913827. The reversal of 11572913813 is 31831927511.

11572913813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11572913813 - 2²² = 11568719509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11572913873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1614788 + ... + 1621938.

It is an arithmetic number, because the mean of its divisors is an integer number (1018208784).

Almost surely, 2^11572913813 is an apocalyptic number.

It is an amenable number.

11572913813 is a deficient number, since it is larger than the sum of its proper divisors (645591595).

11572913813 is an equidigital number, since it uses as much as digits as its factorization.

11572913813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11672 (or 11653 counting only the distinct ones).

The product of its digits is 45360, while the sum is 41.

The spelling of 11572913813 in words is "eleven billion, five hundred seventy-two million, nine hundred thirteen thousand, eight hundred thirteen".